1. Product Overview
The JXTZ Bluetooth 5.0 Transmitter Receiver (Model CP215) is a versatile 3-in-1 audio adapter designed to enhance your audio experience. It functions as a Bluetooth transmitter, a Bluetooth receiver, and supports U disk playback, allowing for seamless audio streaming and playback across various devices.
Equipped with the latest Bluetooth 5.0 technology, this adapter ensures superior sound quality and a stable wireless connection. Its external antenna design minimizes signal interference, providing a reliable transmission range of up to 10 meters (32 feet). The device supports multiple connection types, including RCA and AUX, and features a USB port for U disk audio playback.

Image 1.1: The JXTZ Bluetooth 5.0 Transmitter Receiver highlighting its Bluetooth 5.0 technology for stable and high-quality audio transmission.
2. Key Features
- 3-in-1 Functionality: Operates as a Bluetooth Transmitter (TX), Bluetooth Receiver (RX), and supports U disk audio playback.
- Bluetooth 5.0 Technology: Provides stable, high-quality audio transmission with reduced interference and an extended range of up to 10m/32ft.
- Wireless Connectivity: Converts non-Bluetooth devices into Bluetooth-enabled devices for seamless audio streaming.
- Multiple Audio Inputs/Outputs: Supports RCA and AUX connections, along with a USB port for U disk audio.
- User-Friendly Operation: Easy mode switching with a single button and clear functional indicators for intuitive use.

Image 2.1: Visual representation of the adapter's three operational modes: Transmitter, Receiver, and USB playback.
3. Device Components
Familiarize yourself with the various components and ports of your JXTZ Bluetooth Audio Adapter:

Image 3.1: Labeled diagram of the JXTZ Bluetooth adapter's controls and connection ports.
- LED Indicator: Displays the current operational status.
- Previous/Next Buttons: Used for track navigation during U disk playback.
- Play/Pause Button: Controls audio playback.
- Power ON/OFF Button: Turns the device on or off.
- 2.4G External Antenna: Enhances Bluetooth signal stability and range.
- RCA Interface (L/R): For connecting to devices with RCA audio input/output.
- USB Port: For U disk audio decoding and playback (not for PC connection).
- Type-C Power Interface: For connecting the power supply.
- Standard 3.5mm AUX Interface: Functions as output in Receiver (RX) mode and input in Transmitter (TX) mode.
4. Setup Instructions
4.1. Powering On the Device
- Connect the provided Type-C power cable to the device's Type-C Power Interface.
- Connect the other end of the power cable to a suitable USB power adapter (not included) or a USB port on your TV/PC.
- Press and hold the Power ON/OFF button until the LED indicator lights up.
4.2. Transmitter Mode (TX) Setup
Use this mode to transmit audio from non-Bluetooth devices (e.g., TV, PC, MP3 player) to Bluetooth headphones or speakers.
- Ensure the device is powered on.
- Press the mode switch button (if available, otherwise it might auto-detect or require a long press on power button) to select TX mode. The LED indicator will show TX mode status.
- Connect the JXTZ adapter to your non-Bluetooth audio source (e.g., TV, PC) using either the 3.5mm AUX cable (input) or RCA cables (input).
- Place your Bluetooth headphones or speaker into pairing mode.
- The JXTZ adapter will automatically search for and connect to nearby Bluetooth receiving devices. Once connected, the LED indicator will confirm pairing.

Image 4.1: Illustration of connecting the adapter to a TV and pairing with a Bluetooth device for audio transmission.
4.3. Receiver Mode (RX) Setup
Use this mode to receive audio from Bluetooth-enabled devices (e.g., smartphone, tablet) and play it through non-Bluetooth audio systems (e.g., car stereo, home stereo, wired headphones).
- Ensure the device is powered on.
- Press the mode switch button to select RX mode. The LED indicator will show RX mode status.
- Connect the JXTZ adapter to your non-Bluetooth audio output device (e.g., speaker, headset) using either the 3.5mm AUX cable (output) or RCA cables (output).
- On your Bluetooth-enabled device (smartphone, tablet), enable Bluetooth and search for "JXTZ CP215" (or similar name) in the list of available devices.
- Select the adapter to pair. Once paired, the LED indicator will confirm the connection.

Image 4.2: The adapter in Receiver mode, streaming music from a phone to a wired speaker.
4.4. U Disk Playback Mode Setup
This mode allows you to play audio files directly from a USB flash drive (U disk).
- Ensure the device is powered on.
- Insert your U disk into the USB Port on the JXTZ adapter.
- Press the mode switch button to select USB mode. The LED indicator will show USB mode status.
- The device will automatically begin playing audio files from the U disk.
5. Operating Instructions
- Mode Switching: Press the dedicated mode button (or short press the power button, refer to specific device markings) to cycle between Transmitter (TX), Receiver (RX), and U Disk modes. The LED indicators will change to reflect the active mode.
- Play/Pause: Press the Play/Pause button to start or pause audio playback.
- Previous/Next Track: Use the Previous/Next buttons to skip to the desired audio track during U disk playback or when controlling a paired Bluetooth device in RX mode (if supported by the connected device).
- Volume Control: Volume is typically controlled via the connected audio source (e.g., TV, phone) or the receiving Bluetooth device (e.g., speaker, headphones). The JXTZ adapter itself does not have dedicated volume controls.
6. Troubleshooting
If you encounter issues with your JXTZ Bluetooth Audio Adapter, please refer to the following common solutions:
- Device Not Powering On:
- Ensure the Type-C power cable is securely connected to both the adapter and a working USB power source.
- Verify the USB power adapter or port is supplying power.
- Try a different power cable or USB power source.
- Cannot Pair with Bluetooth Device:
- Ensure the JXTZ adapter is in the correct mode (TX for transmitting, RX for receiving).
- Place both the adapter and the target Bluetooth device in pairing mode.
- Keep the devices within the recommended 10-meter (32-foot) range.
- Clear previous pairing records on both devices and attempt to pair again.
- Restart both devices.
- No Sound Output/Input:
- Check all audio cables (AUX, RCA) for secure connections.
- Ensure the correct audio input/output is selected on your connected devices (TV, stereo, etc.).
- Verify the volume levels on all connected devices are not muted or too low.
- Confirm the JXTZ adapter is in the correct mode (TX for transmitting from source, RX for receiving to output).
- For U disk playback, ensure the audio files are in a supported format and the U disk is properly inserted.
- Audio Delay or Poor Sound Quality:
- Ensure there are no significant obstructions (walls, large metal objects) between the JXTZ adapter and the paired Bluetooth device.
- Move the devices closer to each other to improve signal strength.
- Minimize interference from other 2.4GHz wireless devices (Wi-Fi routers, cordless phones).
- Some older Bluetooth devices or specific audio codecs may introduce slight delays.
7. Specifications
| Brand | JXTZ |
| Model Number | CP215 |
| Connectivity Technology | Auxiliary, USB, Bluetooth |
| Wireless Communication Standard | Bluetooth 5.0 |
| Operating Modes | Transmitter (TX), Receiver (RX), U Disk Playback |
| Transmission Range | Up to 10 meters (32 feet) |
| Power Source | Battery Powered (via Type-C USB) |
| Item Weight | 5.9 ounces |
| Package Dimensions | 6.46 x 3.74 x 1.46 inches |
| Special Feature | Auto re-connection |
8. Safety Information
Please read and follow these safety guidelines to ensure safe operation and prolong the life of your device:
- Do not expose the device to extreme temperatures, humidity, or direct sunlight.
- Avoid dropping or subjecting the device to strong impacts.
- Do not disassemble, modify, or attempt to repair the device yourself. This will void the warranty.
- Keep the device away from water and other liquids.
- Use only the provided or recommended power cables.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
9. Warranty and Support
JXTZ is committed to providing quality products and customer satisfaction. For any product-related inquiries, technical support, or warranty claims, please contact JXTZ customer service through the platform where you purchased the product. Please retain your proof of purchase for warranty purposes.
For more information and support, you may visit the official JXTZ store page: JXTZ Store.